CN105601052B - The processing method of lead in a kind of removal electroplating wastewater - Google Patents

The processing method of lead in a kind of removal electroplating wastewater Download PDF

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CN105601052B
CN105601052B CN201610153560.XA CN201610153560A CN105601052B CN 105601052 B CN105601052 B CN 105601052B CN 201610153560 A CN201610153560 A CN 201610153560A CN 105601052 B CN105601052 B CN 105601052B
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biofermentation
water
filter screen
lead
biological filter
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CN105601052A (en
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石坚
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Jiangsu Tin Yi High Tech Zone Technology Development Co Ltd
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Jiangsu Tin Yi High Tech Zone Technology Development Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes

Abstract

The invention discloses a kind of processing method for removing lead in electroplating wastewater, waste water is handled by sump, coarse rack, primary sedimentation basin, pH value regulating reservoir, biofermentation precipitation reaction cleaning system, aerobic biofilter, secondary sedimentation tank, water purifying tank successively.The creative biofermentation characteristic that make use of dish Xanthomonas campestris of this method, in the presence of D glucose, lactonization reaction, the final output L ascorbic acid that ferments occur inside dish Xanthomonas campestris(Vitamin C), recycle L ascorbic acid to be combined with lead ion, and the characteristic for being insoluble in water and nontoxic salt is generated, the lead ion in electroplating wastewater can be removed by precipitation process.Meanwhile the L ascorbic acid of biofermentation reaction institute output is participated in using D glucose, its cost can substantially reduce the Material Cost of wastewater treatment well below L ascorbic acid is directly added into waste water.

Description

The processing method of lead in a kind of removal electroplating wastewater
Technical field
The present invention relates to a kind of processing method for removing lead in electroplating wastewater, the wastewater treatment neck belonged in environmental protection Domain.
Background technology
With the development of society, a large amount of undressed heavy metal wastewater therebies are directly discharged into natural water body, cause huge Harm.The contamination accident of wherein heavy metal lead is more prominent, and just there occurs 9 blood lead events for only 2010 China.Lead ion and Soluble lead salt is all poisonous, and health and plant growth can be damaged.It can poison nerve and the hematopoiesis system of people System, cause spasm, neural blunt and anaemia etc., especially influence the development of children.So《Standards for drinking water quality》 (GB 5749-2006)Lead ion content is adjusted to 0.01mg/L, and《Lead, Zn Cr coating pollutant emission standard》(GB 25466-2010)Middle regulation industrial wastewater lead ion highest allows discharge quality concentration to be 0.5mg/L.
The processing method both at home and abroad on leaded electroplating wastewater can be divided into three major types at present:Physical treatment process, chemical treatment Method, biological treatment.
1st, conventional physical treatment logos includes absorption method, ion-exchange, membrane separation process etc..
(1)Absorption method is that a kind of method of heavy metal ions in wastewater is removed using a variety of porous adsorbing materials.Activated carbon It is traditional sorbing material, has stronger adsorption capacity, clearance is high, but regeneration efficiency is low.Some natural materials, such as natural boiling Stone, price is low, source is wide, and it is the mineral material for being used for Heavy Metal Pollution Control earliest.
(2)Ion-exchange is to swap to reach with the ion on ion-exchanger using water intermediate ion to have in water removal The purpose of evil ion.Ion exchange resin is being commonly used to handle with this method processing lead waste water both at home and abroad at present.
(3)UF membrane is to utilize a kind of pellicle, under external influence, does not change the chemical form of solution and reaches separation Purpose.It is an efficient separation process, and separation process energy consumption is low, and operating temperature is room temperature, is easy to safeguard, equipment can High by property, treating capacity and equipment scale change within a large range, and floor space is small, will not produce secondary pollution, but film It is expensive, vulnerable to pollution.
2nd, conventional method of chemical treatment includes chemical precipitation method and electrolysis.
Method of chemical treatment has chemical precipitation method and electrolysis in lead containing wastewater treatment.
(1)Chemical precipitation method is to add some chemical substances into waste water to make the pollutant in itself and waste water occur directly Chemical reaction, the method that generation is insoluble in the sediment of water and removes separated from contaminants.But handled with the method and simply shifted Polluter in waste water, and it is likely to cause secondary pollution.
(2)Electrolysis, which converts electrical energy into chemical energy, makes electrode in electrolytic cell nearby produce redox reaction, so that The process that waste water is purified.I.e. waste water carries out cell reaction, and the noxious material in waste water carries out oxygen respectively in anode and negative electrode Change reduction reaction result and produce novel substance.For electrolysis compared with chemical precipitation method, the cycle is short, and operating cost is low, less energy consumption, is beneficial to Lead all rescue measures proved ineffectual advantage is reclaimed, but the consumption of anode material iron is big, floor space is big.
3rd, biological treatment is to handle waste water using the metabolism of biology.Biological treatment can be in processing weight The inorganic matter that and can is gone in water removal while metal.After microorganism is fixed, its stability increase, to the ability to bear and drop of poisonous substance Solution ability all increased.Removal available for heavy metal ion in various organic wastewaters.Microorganism treatment has microorganism The advantages that density is high, product separation is easy.It is but extensive to utilize because cell technique for fixing is still in the experimental study stage at present The situation of microbiological treatment heavy metal wastewater thereby is also seldom, to realize that industrialization also needs to further study.
At present, existing leaded electroplating effluent treatment method has that cost height, technical sophistication, floor space be big, high energy consumption And the deficiencies such as recycling rate of waterused is low.Therefore, it is necessary to break away from existing treatment technology thinking, hew out has in processing electroplating wastewater The phosphatic new way of machine, and then develop a kind of electroplating wastewater organic phosphate treatment technology of new type.
The content of the invention
To solve the deficiencies in the prior art, the invention provides a kind of processing side for removing lead in electroplating wastewater Method, leaded electroplating wastewater enter sump by waste line, carry out centralized collection and preliminarily stabilised regulation herein, sump Outlet connects coarse rack by waste line, and the major diameter solid matter in waste water is removed at this, and the outlet of coarse rack, which passes through, gives up Water pipeline connects primary sedimentation basin, and in this insoluble matter in further removing waste water, the outlet of primary sedimentation basin passes through waste water Pipeline connects pH value regulating reservoir, and waste water carries out the accurate adjustment of pH value herein, the pH value range of pH value regulating reservoir water outlet for 5.5 ~ 6.5, to meet that the water pH value that enters of biofermentation-precipitation reaction cleaning system requires that the outlet of pH value regulating reservoir passes through waste pipe Line connects biofermentation-precipitation reaction cleaning system, at the leaded sludge outward transport of biofermentation-precipitation reaction cleaning system discharge Reason, meanwhile, the outlet of biofermentation-precipitation reaction cleaning system connects aerobic biofilter by waste line, and waste water is herein Through aeration and biological oxidation process to remove organic matter therein, the outlet of aerobic biofilter passes through waste line connecting secondary Sedimentation basin, insoluble matter in waste water all being removed at this, the outlet of secondary sedimentation tank connects water purifying tank by waste line, The outlet of water purifying tank will be arranged by waste line outside the purification water outlet after the system is handled;Wherein, biofermentation-precipitation is anti- The pond body of cleaning system is answered to use hard glass steel material, its pond body is divided into upper and lower two units, and lower unit is except lead purifies Unit, its left lower are equipped with inlet valve and electric expansion mud pusher, and right upper portion is equipped with flowing water Valve, and lower right side is equipped with Sludge arranges mouth, and middle part is reserved with the micropore biological filter screen of space decline so far;Upper unit is biological fermentation cabin, its top It is respectively fixed with 6 tool short distance expansion links and 6 tools is long away from expansion link, often having a short distance expansion link end is mounted on 1 powder shower nozzle, Often tool is long is mounted on 1 set of micropore biological filter screen away from expansion link end, and biofermentation storehouse both sides are respectively provided with a set of automatic temperature-controlled Device, its bottom in being provided with 6 electric cabin doors altogether in micropore biological filter screen relative position.After pH value regulation processing(Place PH value is 5.5 ~ 6.5 after reason)Electroplating wastewater entered by the inlet valve of biofermentation-precipitation reaction cleaning system left bottom Enter inside cleaning system, completed biological fermentation process and be attached with the micropore biological filter screens of enough L-AAs for 3 sets to exist Under the long driving away from expansion link, the electric cabin door through biofermentation orlop portion is dropped to below the water surface, is filled with electroplating wastewater Tap is touched, and the L-AA adhered on micropore biological filter screen can chemically react with the lead ion in waste water, with reference to life Into water and nontoxic salt is insoluble in, progressively it is deposited in pond body bottom and forms leaded sludge, this sludge is through electric expansion mud pusher Promote, the system is discharged by sludge row's mouth of pond body bottom right side and carries out harmless treatment, meanwhile, by except lead treatment and purification Waste water afterwards, the system is discharged by the flowing water Valve of pond body right upper portion, into next treatment process;When on micropore biological filter screen When the L-AA step-reaction of attachment runs out of, micropore biological filter screen can lift water outlet under the long driving away from expansion link Face, biofermentation storehouse is recycled to through electric cabin door, and other 3 sets have been completed biological fermentation process and to be attached with enough L- anti-bad The micropore biological filter screen of hematic acid under the long driving away from expansion link, the electric cabin door through biofermentation orlop portion drop to the water surface with Under, continuation reacts with electroplating wastewater, and performance removes lead catharsis, meanwhile, biofermentation storehouse has been recycled in previous step In 3 sets of micropore biological filter screens, by the up and down motion of the 3 powder shower nozzles driven by short distance expansion link, to uniformly spray thereon The mixed-powder of dish Xanthomonas campestris bacterial strain and D-Glucose is spilt, and 90min is stopped to complete biofermentation in biofermentation storehouse Process, in this time, the thermostat of biofermentation storehouse both sides, which adjusts temperature in storehouse to suitable dish Xanthomonas campestris, gives birth to Long temperature range(25~35℃), in the presence of D-Glucose, lactonization reaction, final hair occur inside dish Xanthomonas campestris Ferment output L-AA is simultaneously attached on micropore biological filter screen, make micropore biological filter screen except lead purification function is regenerated, Micropore biological filter screen is dropped to below the water surface through the long driving away from expansion link again, the micropore biological filter screen before replacing it, continue with Electroplating wastewater reacts, and performance removes lead catharsis, and this biofermentation-precipitation reaction purification process moves in circles progress.
Further, the pond body dischargeable capacity of biofermentation-precipitation reaction cleaning system is 150m3, biofermentation storehouse has Effect volume is 125m3, the operating voltage of expansion link motor and electric cabin door be 380V, the operating voltage of powder shower nozzle is 15V.
Further, the aperture of the micropore biological filter screen of biofermentation-precipitation reaction cleaning system is 25 μm, automatic temperature-controlled dress The operating voltage put is 230V, and temperature controlling range is 20 ~ 40 DEG C, and temperature-controlled precision is 1.0 DEG C.
The advantage of the invention is that:
(1)The present invention has broken away from existing leaded purifying electroplating wastewater handling principle, and creative make use of dish Huang unit cell It is ascorbic characteristic that bacterium can produce L-AA by biological fermentation process, while also uses L-AA energy It is enough to be combined with lead ion, and the reaction for being insoluble in water and nontoxic salt is generated, the reaction is easily in the weak acid that pH is 5.5 ~ 6.5 Carried out under property environment, and very strong to the selectivity of Pb In Exhausted Water ion, be unusual targetedly processing method.
(2)The salt reacted by L-AA and lead ion to generate is a kind of nontoxic material, and the system institute The L-AA of the dish Xanthomonas campestris used and D-Glucose and biological fermentation process institute output to human body and environment without Evil.Therefore, this method is a kind of non-harmful purifying treatment method.
(3)The invention make use of a kind of micropore biological filter screen that can adhere to L-AA, as its table Face haptoreaction medium, enables the lead ion in waste water to be fully in contact with it, improves reaction efficiency, improves whole The disposal ability of system, the electroplating wastewater after being handled by the system, its lead ion removal efficiency is up to 99.2%.
(4)The principle of the invention is simple and easy, and design and construction cost is relatively low, and treatment effect is preferable, operation expense It is very low, be advantageous to a wide range of popularization and application.
Brief description of the drawings
Fig. 1 is the equipment schematic diagram of the present invention.
In figure:1- sumps, 2- coarse racks, 3- primary sedimentation basins, 4-pH values regulating reservoir, 5- biofermentations-precipitation reaction Cleaning system, 6- aerobic biofilters, 7- secondary sedimentation tanks, 8- water purifying tanks
Fig. 2 is the schematic diagram of biofermentation-precipitation reaction cleaning system.
51- inlet valves, 52- biofermentations storehouse, 53- short distances expansion link, 54- length are filtered away from expansion link, 55- micropore biologicals Net, 56- powder shower nozzle, 57- electric cabin doors, 58- thermostats, 59- flowing water Valves, 510- sludge row mouth, 511- are electronic Flexible mud pusher.
Embodiment
The processing method for removing lead in electroplating wastewater as shown in Figure 1, leaded electroplating wastewater are entered by waste line and collected Well 1, centralized collection and preliminarily stabilised regulation are carried out herein, the outlet of sump 1 connects coarse rack 2 by waste line, This removes the major diameter solid matter in waste water, and the outlet of coarse rack 2 connects primary sedimentation basin 3 by waste line, entered herein One step removes the insoluble matter in waste water, and the outlet of primary sedimentation basin 3 connects pH value regulating reservoir 4 by waste line, and waste water exists This carries out the accurate adjustment of pH value, and the pH value range of the water outlet of pH value regulating reservoir 4 is 5.5 ~ 6.5, to meet that biofermentation-precipitation is anti- That answers cleaning system 5 enters the requirement of water pH value, and the outlet of pH value regulating reservoir 4 connects biofermentation-precipitation reaction by waste line Cleaning system 5, the leaded sludge outward transport processing that biofermentation-precipitation reaction cleaning system 5 is discharged, meanwhile, biofermentation-precipitation The outlet for reacting cleaning system 5 connects aerobic biofilter 6 by waste line, and waste water is herein through aeration and biological oxidation process To remove organic matter therein, the outlet of aerobic biofilter 6 is by waste line connecting secondary sedimentation basin 7, herein by waste water In insoluble matter all remove, the outlet of secondary sedimentation tank 7 connects water purifying tank 8 by waste line, and the outlet of water purifying tank 8 leads to Crossing waste line will arrange outside the purification water outlet after the system is handled;Wherein, biofermentation-precipitation reaction cleaning system 5 Pond body uses hard glass steel material, and pond body dischargeable capacity is 150m3, its pond body is divided into upper and lower two units, lower unit To be equipped with inlet valve 51 and electric expansion mud pusher 511 except lead clean unit, its left lower, right upper portion is equipped with outlet valve Door 59, for lower right side equipped with sludge row's mouth 510, middle part is reserved with the micropore biological filter screen 55 of space decline so far;Top Unit is biological fermentation cabin 52, dischargeable capacity 125m3, it is long away from stretching that its top is respectively fixed with 6 tool short distance expansion links 53 and 6 tool Contracting bar 54, often having an end of short distance expansion link 53 is mounted on 1 powder shower nozzle 56, and often tool length is mounted on away from the end of expansion link 54 1 set of micropore biological filter screen 55, the both sides of biofermentation storehouse 52 are respectively provided with a set of thermostat 58, and its bottom is in micropore biological 6 electric cabin doors 57 are installed altogether, the operating voltage of expansion link motor and electric cabin door is 380V, powder in the relative position of filter screen 55 The operating voltage of last shower nozzle is 15V, and the aperture of its micropore biological filter screen is 25 μm, and the operating voltage of thermostat is 230V, temperature controlling range are 20 ~ 40 DEG C, and temperature-controlled precision is 1.0 DEG C.After pH value regulation processing(PH value is 5.5 after processing ~6.5)Electroplating wastewater cleaning system is entered by the inlet valve 51 of biofermentation-left bottom of precipitation reaction cleaning system 5 Inside, 3 sets have been completed biological fermentation process and have been attached with the micropore biological filter screens 55 of enough L-AAs long away from flexible Under the driving of bar 54, the electric cabin door 57 through the bottom of biofermentation storehouse 52 is dropped to below the water surface, is occurred with electroplating wastewater abundant Contact, the L-AA adhered on micropore biological filter screen 55 can chemically react with the lead ion in waste water, with reference to life Into water and nontoxic salt is insoluble in, progressively it is deposited in pond body bottom and forms leaded sludge, this sludge is through electric expansion mud pusher 511 promote, and discharge the system by sludge row's mouth 510 of pond body bottom right side and carry out harmless treatment, meanwhile, at except lead Waste water after reason purification, discharges the system, into next treatment process by the flowing water Valve 59 of pond body right upper portion;When micropore is given birth to When the L-AA step-reaction adhered on thing filter screen 55 runs out of, micropore biological filter screen 55 can be in the long drive away from expansion link 54 The water surface is lifted out under dynamic, biofermentation storehouse 52 is recycled to through electric cabin door 57, and other 3 sets have been completed biological fermentation process and The micropore biological filter screen 55 of enough L-AAs is attached with the long driving away from expansion link 54, through the bottom of biofermentation storehouse 52 Electric cabin door 57 drop to below the water surface, continuation reacted with electroplating wastewater, play remove lead catharsis, meanwhile, upper one 3 sets of micropore biological filter screens 55 being recycled in step in biofermentation storehouse 52, pass through 3 powder driven by short distance expansion link 53 The up and down motion of last shower nozzle 56, to the mixed-powder for uniformly spraying dish Xanthomonas campestris bacterial strain and D-Glucose thereon, and in biology 90min is stopped in fermentation cabin 52 to complete biological fermentation process, in this time, the automatic temperature-controlled dress of the both sides of biofermentation storehouse 52 58 are put to adjust temperature in storehouse to the temperature range of suitable dish Xanthomonas campestris growth(25~35℃), in the presence of D-Glucose, Lactonization reaction occurs inside dish Xanthomonas campestris, final fermentation output L-AA is simultaneously attached on micropore biological filter screen 55, Make micropore biological filter screen 55 except lead purification function is regenerated, micropore biological filter screen 55 is again through under the long driving away from expansion link 54 It is down to below the water surface, the micropore biological filter screen 55 before replacing it, continuation reacts with electroplating wastewater, plays except lead purification is made Moved in circles progress with, this biofermentation-precipitation reaction purification process;Wherein, the effect of pH value regulating reservoir 4 is by by once The pH value of waste water of precipitation is adjusted to 5.5 ~ 6.5, to meet that the water pH value that enters of biofermentation-precipitation reaction cleaning system 5 requires;Its In, the effect of aerobic biofilter 6 is by aerobic aeration and biological oxidation process, and remaining organic matter in waste water is all gone Remove.
Electroplating wastewater after being handled by the system, the removal efficiency of its lead ion is up to 99.2%.

Claims (3)

1. a kind of processing method for removing lead in electroplating wastewater, it is characterised in that leaded electroplating wastewater is entered by waste line Sump, the outlet of sump connect coarse rack by waste line, and the outlet of coarse rack is once sunk by waste line connection Shallow lake pond, the outlet of primary sedimentation basin connect pH value regulating reservoir by waste line, and the outlet of pH value regulating reservoir passes through waste line Biofermentation-precipitation reaction cleaning system is connected, at the leaded sludge outward transport of biofermentation-precipitation reaction cleaning system discharge Reason, while the outlet of biofermentation-precipitation reaction cleaning system connects aerobic biofilter, aerobe filter by waste line The outlet in pond connects water purifying tank by waste line connecting secondary sedimentation basin, the outlet of secondary sedimentation tank by waste line, only The outlet in pond will be arranged by waste line outside purification water outlet after treatment;Wherein, biofermentation-precipitation reaction purification system The pond body of system uses hard glass steel material, and its pond body is divided into upper and lower two units, lower unit be except lead clean unit, its Left lower is equipped with inlet valve and electric expansion mud pusher, and right upper portion is equipped with flowing water Valve, and lower right side is arranged equipped with sludge Mouthful, middle part is reserved with the micropore biological filter screen of space decline so far;Upper unit is biological fermentation cabin, and its top is solid respectively Surely there are 6 tool short distance expansion links and 6 tools long away from expansion link, often have a short distance expansion link end is mounted on 1 powder shower nozzle, and often tool is grown 1 set of micropore biological filter screen is mounted on away from expansion link end, biofermentation storehouse both sides are respectively provided with a set of thermostat, its Bottom in 6 electric cabin doors are provided with micropore biological filter screen relative position altogether, after pH value regulation processing pH value be 5.5 ~ 6.5 electroplating wastewater is entered inside cleaning system by the inlet valve of biofermentation-precipitation reaction cleaning system left bottom, 3 sets have been completed biological fermentation process and have been attached with the micropore biological filter screen of enough L-AAs in the long driving away from expansion link Under, the electric cabin door through biofermentation orlop portion is dropped to below the water surface, occurs fully to contact with electroplating wastewater, micropore biological filter The L-AA adhered on the net can be chemically reacted with the lead ion in waste water, and water and nontoxic is insoluble in reference to generation Salt, progressively it is deposited in pond body bottom and forms leaded sludge, this sludge promotes through electric expansion mud pusher, by pond body bottom right side Sludge row's mouth discharge the system and carry out harmless treatment, meanwhile, the waste water after except lead treatment and purification, by the right side of pond body The flowing water Valve on top discharges the system, into next treatment process;When the L-AA adhered on micropore biological filter screen by When step reaction runs out of, micropore biological filter screen can be lifted out the water surface under the long driving away from expansion link, be recycled to through electric cabin door Biofermentation storehouse, and other 3 sets have been completed biological fermentation process and have been attached with the micropore biological filter screen of enough L-AAs Under the long driving away from expansion link, the electric cabin door through biofermentation orlop portion is dropped to below the water surface, continuation and electroplating wastewater React, performance removes lead catharsis, while the 3 sets of micropore biologicals filter being recycled in previous step in biofermentation storehouse Net, by the up and down motion of the 3 powder shower nozzles driven by short distance expansion link, to thereon uniformly sprinkling dish Xanthomonas campestris bacterial strain and The mixed-powder of D-Glucose, and 90min is stopped to complete biological fermentation process in biofermentation storehouse, it is raw in this time The thermostat of thing fermentation cabin both sides adjusts temperature in storehouse to 25 ~ 35 DEG C, in the presence of D-Glucose, dish Huang unit cell Lactonization reaction occurs inside bacterium, final fermentation output L-AA is simultaneously attached on micropore biological filter screen, makes micropore biological Filter screen is regenerated except lead purification function, and micropore biological filter screen is dropped to below the water surface through the long driving away from expansion link again, is replaced Alternatively preceding micropore biological filter screen, continuation react with electroplating wastewater, and performance removes lead catharsis, this biofermentation-precipitation Reaction purification process moves in circles progress.
2. the processing method according to claim 1 for removing lead in electroplating wastewater, it is characterised in that biofermentation-precipitation The pond body dischargeable capacity for reacting cleaning system is 150m3, the dischargeable capacity in biofermentation storehouse is 125m3
3. the processing method according to claim 1 for removing lead in electroplating wastewater, it is characterised in that biofermentation-precipitation The aperture for reacting the micropore biological filter screen of cleaning system is 25 μm, and the operating voltage of its thermostat is 230V, temperature control Scope processed is 20 ~ 40 DEG C, and temperature-controlled precision is 1.0 DEG C.
CN201610153560.XA 2016-03-17 2016-03-17 The processing method of lead in a kind of removal electroplating wastewater Active CN105601052B (en)

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CN109226250A (en) * 2016-06-02 2019-01-18 朱辉 A kind of biofermentation soil remediation method removing heavy metal lead
CN109534597A (en) * 2016-08-04 2019-03-29 王尧尧 A kind of processing method of industrial wastewater
CN106045230B (en) * 2016-08-04 2018-12-28 杭州绿一环保技术有限公司 A kind of processing system of industrial wastewater
CN106116053A (en) * 2016-08-17 2016-11-16 缪琼华 A kind of processing method of coke-oven waste water
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CN102464376A (en) * 2011-10-20 2012-05-23 常州亚环环保科技有限公司 Method for treating lead-containing wastewater by utilizing biological waste residue base
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